Matthew l



(No Model.)

M. L. HOYT & H. F. MURRAY.

GHURN. I No. 404,281. Patented May 28, 1889* gmvewfow,

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UNITED STATES PATENT ()FFICE.

MATTHEW L. HOYT AND HUGH F. MURRAY, OF BALLSTON SPA, NEW YORK;

SAID MURRAY ASSIGNOR TO SAID I-IOYT.

CHURN.

SPECIFICATION forming part of Letters Patent No. 404,281, dated May 28, 1889.

Application filed January 26, 1889. Serial No. 297,606. (No model.)

To all whom it may concern:

Be it known that we, MATTHEW L. HOYT and HUGH F. MURRAY, citizens of the United States, residing at Ballston Spa, in the county of Saratoga and State of New York, have in vented certain new and useful Improvements in Churns, of which the following is a specification, reference being had therein to the accompanyin g drawings. This invention relates to that class of churns consisting of a suitable vessel supported upon trunnions in such manner that it may be rotated or oscillated back and forth to agitate the milk or cream for the production of butt-er therefrom. In this class of churns as heretofore constructed the milk or cream, as the churn is operated and the ends of the vessel, respectively, fall below the central line of support, collects in the depressed end, overbalancing the vessel and rendering it necessary to lift the entire body of milk or cream at each vibration of the vessel, thereby entailing useless labor and waste of power and causing the churn to turn unevenly and 2 5 irregularly.

It is the object ofour invention to obviate these objections and provide a churn the vessel of which at all times will be uniformly balanced, so that it can be operated with ease 0 and without waste of power, as more fully hereinafter set forth.

The above-mentioned objects we attain by the means illustrated in the accompanying drawings, in which 3 5 Figure 1 represents a longitudinal vertical section of a churn constructed according to my invention, showing the vessel in a horizontal position. Fig. 2 represents a vertical sectional view showing the vessel in an 0b- 0 lique position. Fig. 3 represents a vertical sectional View showing the churn-vessel in a vertical position. Fig. 4 represents adetached perspective view of an imperforate partition forming part of the churn-vessel. Fig. 5 rep- 5 resents a sectional View showing a modification of the cover; and Fig; 6, a vertical sectional View on line m m, Fig. 1.

Referring to the drawings, the letter A indicates the churn-vessel, which may be con-.

structed of any suitable material, and which is rhomboidal or diamond shape in longitudinal vertical section.

B indicates the Supportingframe of the churn, which in the present instance consists of a suitable base having verticalstandards at opposite sides, between which the churnvessel is supported. The said vessel at opposite sides at the centers thereof is provided with trunnions O, which are journaled in suitable bearings in the upper ends of the vertical standards before mentioned. The churnvessel at one of its upper sides is provided with a removable door, D, which may be secured in any convenient manner. In the present instance, as shown in Fig. 1, it is formed with beveled edges at opposite sides, which set under similarly-beveled undercut edges at the sides of the vessel, as shown, so that it may slide into place and be held by said edges.

The letter E indicates an imperforate partition or diaphragm, which extends across the interior of the churn-vessel in the plane of the shorter diameter thereof. The said partition or diaphragm is removable and has its upper. and lower edges beveled from opposite sides, so as to fit accurately in the obtuse angles F of the churn and be held closely and securely therein, the removable cover assisting in holding it at one end when the door is in place and permitting it to be placed in position or 8o displaced when the door is open or removed. One of .the trunnions is extended beyond its journal-bearing and is provided with a crank, F, by which the Vessel may be rotated or vibrated. To assist further in holding the par tition or diaphragm, one or both of the trunnions may be extended through the side of the vessel, so as to enter a recess in the edge of the partition, and for further security the inwardly-extended end of the trunnion may be screw-threaded, as shown.

If desired, each chamber of the churn may be provided with a small vertical window, f.

It will be observed by reference to Figs. '1, 2, and 3 of the drawings that the churn-ves- 5 sel is divided into two compartments, which are in the form of equilateral triangles in section, so that the cream or milk,instead of collecting at one end of the vessel when inclined, will be distributed at each side of the partition I00 or diaphragm, and thebody of milk or cream on one side will accurately balance that on the other, thus obviating the waste of power above mentioned.

Vhile the door may be constructed and secured to the churn in any desired manner, we prefer to construct it as shown in Fig. 5 of the drawings, in which the edges of the opening in the vessel are provided with a band of metal, at, extending a slight distance outside of said opening, and the edges of the door with a band of metal, Z), extending outwardly and curved laterally, forming a recess, in which is secured a packing, c, of elastic material, the door being clamped in place by means of pivoted buttons (Z at the sides.

Having thus described our invention,what 

